Quoted from Scorch:

So I also hooked up some 5v strips directly to GI, and didn't have any strobing issues (at least not to my eye).
I was worried about pulling too much current, but here are my calculations (correct me if I'm wrong)
In my data east LAH, there are Probably about 50 lights in the GI and backbox. I assume they are all on the same circuit but maybe I'm wrong?
standard bulbs pull about 1.5 watts but high intensity LED's are about 0.95watts. So by replacing 50 bulbs, I'm reducing the load by 27.5 watts.
I believe the strips I'm using are between 3-5 watts each, so 2 strips would only be up to 10 watts.
Out of curiosity though... am I wrong to assume that the worst thing that could happen by overloading the circuit is a blown fuse?

Quoted from tonycip:

or to be safer use something like this
amazon.com link »